Try doing a search, using the search function at the upper right corner. This issue has been discussed many times. There is info in the threads on how to repair at home. I opted to farm the job out to Palo Alto Speedometer http://www.paspeedo.com, about a 3 day turn around, working great now.

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Mike Tangas
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72

'02 CLK320 Cabriolet - wifey's mid-life crisis

2012 VW Jetta Sportwagon TDI...at least its a diesel

Non illegitemae carborundum.